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Thread: Mosin M1891 D.1895 Bolt not closing

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    Legacy Member BVZ24's Avatar
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    Mosin M1891 D.1895 Bolt not closing

    This is probably the most asked forum question in firearms, but so far most previous forums haven't helped me figure it out.
    I have a Mosin Nagant, dated 1895, with a matching barrel and bolt. When I try to chamber a live round, a dummy, or an empty case, the bolt does not close. I cannot even force the bolt shut. The rounds fully seat in the chamber, and do not stick out. The chamber, the extractor, the bolt face, have all been cleaned and some have been polished. It doesn't close even after swapping bolt faces and bolts.
    What's next? Any ideas?

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    Advisory Panel browningautorifle's Avatar
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    So if I see the picture correctly, the extractor won't clip over the rim in either case? Maybe read this solution down about twelve by Millman. Sounds like your extractor? Read... bolt won't close with round. - The Russian Mosin Nagant Forum
    Regards, Jim

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    Legacy Member BVZ24's Avatar
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    Extractor clips over the rim just fine, and it extracts the round from the unclosed chamber. The bolt does not close even when the round is clipped in by hand. One of the first things I tried, before shotgun brushing the chamber. With a power drill.
    Last edited by BVZ24; 07-28-2022 at 08:00 PM.

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    Contributing Member usabaker's Avatar
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    If you have a spent case cut down the case to almost the rim and see if the bolt will close on it. If it does, then its a chamber issue, if not then you have a headspace issue.
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    Legacy Member Dannyboy53's Avatar
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    Case head seperation maybe? Part of a case stuck in the chamber will act like that.

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    Yes, look real closely and see if you see part of the casing in there. You should be able to see the ridge of the case from the point of breakage if in fact that is what is wrong. if so, you'll need a broken shell extractor which are cheap.hth
    Last edited by jond41403; 07-29-2022 at 04:58 PM.
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    Legacy Member BVZ24's Avatar
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    We decided the chamber is short cut by a hair. Just enough to stop the bolt from closing. It's been cleaned and degreased several times now.

    This must be the only mosin, ever, to have tight headspace.

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  13. #8
    Advisory Panel browningautorifle's Avatar
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    Should be easy enough to solve, just a few turns of a ream and tight instead of too tight.
    Regards, Jim

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